Question

find the volume of cylinder of radius2.8 cm and
height 3.5m.​

Answer 1

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Given

• Radius = 2.8cm

• Height = 3.5cm

To Calculate

• Volume of cylinder

Solution

$\bf Volume \: of \: cylinder = \pi {r}^{2} h$

$\bf = \frac{22}{7} \times {(2.8)}^{2} \times 3.5$

$\bf = \frac{22}{7} \times 7.84 \times 3.5$

$\bf = 22 \times 7.84 \times 0.5$

$\bf = 86.24 {cm}^{3}$

Therefore, Volume of cylinder is 86.24 cm cube.

Answer 2

Answer:

Given

Radius = 2.8cm

Height = 3.5cm

To Calculate

Volume of cylinder

Solution

\bf Volume \: of \: cylinder = \pi {r}^{2} hVolumeofcylinder=πr2h

\bf = \frac{22}{7} \times {(2.8)}^{2} \times 3.5=722×(2.8)2×3.5

\bf = \frac{22}{7} \times 7.84 \times 3.5=722×7.84×3.5

\bf = 22 \times 7.84 \times 0.5=22×7.84×0.5

\bf = 86.24 {cm}^{3}=86.24cm3

Therefore, Volume of cylinder is 86.24 cm cube.